/Engine/Source/Runtime/Engine/Classes/Engine/AssetManager.h
Manually register a new or updated primary asset, returns true if it was successful
virtual bool RegisterSpecificPrimaryAsset ( const [FPrimaryAssetId](API\Runtime\CoreUObject\UObject\FPrimaryAssetId) & PrimaryAssetId, const [FAssetData](API\Runtime\CoreUObject\AssetRegistry\FAssetData) & NewAssetData )